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SoClipPlane Class Reference

The SoClipPlane class is a node type for specifying clipping planes. More...

#include <Inventor/nodes/SoClipPlane.h>

Inheritance diagram for SoClipPlane::

List of all members.

Public Methods
	SoClipPlane (void)
virtual void	doAction (SoAction *action)
virtual void	GLRender (SoGLRenderAction *action)
virtual void	callback (SoCallbackAction *action)
virtual void	pick (SoPickAction *action)
Static Public Methods
void	initClass (void)
Public Attributes
SoSFPlane	plane
SoSFBool	on
Protected Methods
virtual	~SoClipPlane ()

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Detailed Description

The SoClipPlane class is a node type for specifying clipping planes.

A scene graph without any SoClipPlane nodes uses six clipping planes to define the viewing frustum: top, bottom, left, right, near and far. If you want extra clipping planes for "slicing" the visible geometry, you can do that by using nodes of this type. Geometry on the back side of the clipping plane is clipped away.

Note that OpenGL implementations have a fixed maximum number of clipping planes available. To find out what this number is, you can use the following code:

      #include <Inventor/elements/SoGLClipPlaneElement.h>
      // ...[snip]...
      int maxplanes = SoGLClipPlaneElement::getMaxGLPlanes();

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Constructor & Destructor Documentation

SoClipPlane::SoClipPlane (  void )

Constructor.

SoClipPlane::~SoClipPlane (  )  [protected, virtual]

Destructor.

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Member Function Documentation

void SoClipPlane::initClass (  void )  [static]

Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system. Reimplemented from SoNode. Reimplemented in SoClipPlaneManip.

void SoClipPlane::doAction (  SoAction * action )  [virtual]

This function performs the typical operation of a node for any action. Reimplemented from SoNode. Reimplemented in SoClipPlaneManip.

void SoClipPlane::GLRender (  SoGLRenderAction * action )  [virtual]

Action method for the SoGLRenderAction. This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method. Reimplemented from SoNode. Reimplemented in SoClipPlaneManip.

void SoClipPlane::callback (  SoCallbackAction * action )  [virtual]

Action method for SoCallbackAction. Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph. Reimplemented from SoNode. Reimplemented in SoClipPlaneManip.

void SoClipPlane::pick (  SoPickAction * action )  [virtual]

Action method for SoPickAction. Does common processing for SoPickAction action instances. Reimplemented from SoNode. Reimplemented in SoClipPlaneManip.

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Member Data Documentation

SoSFPlane SoClipPlane::plane

Definition of clipping plane. Geometry on the back side of the clipping plane is clipped away.

SoSFBool SoClipPlane::on

Whether clipping plane should be on or off. Defaults to TRUE.

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The documentation for this class was generated from the following files:

• SoClipPlane.cpp
• SoClipPlane.h

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